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A resistance of 20 ohm is connected to a source of an alternating potential V=220 sin (100 πt). The time taken by the current to change from its peak value to r.m.s value is
Options
(a) 2.5 x 10⁻³ sec
(b) 0.25 sec
(c) 25 x 10⁻³ sec
(d) 2.5 sec
Correct Answer:
2.5 x 10⁻³ sec
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting below.
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Topics: Alternating Current
(96)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- 34 gram of water at 30⁰C is poured into a calorimeter at 15⁰C.
- In case of linearly polarised light, the magnitude of the electric field vector
- A cylindrical tank is filled with water to a level of 3m. A hole is opened at a height
- The ionisation energy of an electron in the ground state of helium atom is 24.6 eV.
- Electrons used in an electron microscope are accelerated by a voltage of 25 kV
Topics: Alternating Current (96)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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